I currently own a Mac with OS 9.1 which is rather old and second (or third) hand. I got it from a friend who got it from a school however the problem is the only accounts which I can log into are limited accounts and I do not have the install disks or passwords for the administrator accounts. I recall reading a way to unlock admin mode if the account type of the user was ??? but I checked back then and the user account type is not the right type. Any help would be greatly appreciated.